Insights
This blog has been taken from Malcore’s analysis results. The points below are not an exhaustive list. For a full view of Malcore’s static analysis of the VK.com App APK view it on Malcore.
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Discovered Trackers
myTarget
Facebook Share
Bolts
AppsFlyer
Google Firebase Analytics
VKontakte SDK
Google Tag Manager
Facebook Analytics
IAB Open Measurement
Facebook Login
Google CrashLytics
Huawei Mobile Services (HMS) Core
myTracker
High severity warnings from code analysis
The App uses an insecure Random Number Generator.
App can read/write to External Storage. Any App can read data written to External Storage.
Files may contain hardcoded sensitive information like usernames, passwords, keys etc.
App uses SQLite Database and execute raw SQL query. Untrusted user input in raw SQL queries can cause SQL Injection. Also sensitive information should be encrypted and written to the database.
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
App creates temp file. Sensitive information should never be written into a temp file.
Insecure Implementation of SSL. Trusting all the certificates or accepting self signed certificates is a critical Security Hole. This application is vulnerable to MITM attacks
This App download files using Android Download Manager
Suspicious severity warnings from code analysis
Application attempts to discover build version of device.
Dangerous Labelled permissions from Android
Android Dangerous labelled permissions as Dangerous from this library https://developer.android.com/reference/android/Manifest.permission.
Name: CHANGE_NETWORK_STATE
Description: Allows an application to change the state of network connectivity.
Name: WRITE_SETTINGS
Description: Allows an application to modify the system's settings data. Malicious applications can corrupt your system's configuration.
Name: READ_CALENDAR
Description: Allows an application to read all of the calendar events stored on your phone. Malicious applications can use this to send your calendar events to other people.
Name: ACCESS_COARSE_LOCATION
Description: Access coarse location sources, such as the mobile network database, to determine an approximate phone location, where available. Malicious applications can use this to determine approximately where you are.
Name: BLUETOOTH
Description: Allows an application to view configuration of the local Bluetooth phone and to make and accept connections with paired devices.
Name: BLUETOOTH_ADMIN
Description: Allows an application to configure the local Bluetooth phone and to discover and pair with remote devices.
Name: NFC
Description: Allows an application to communicate with Near-Field Communication (NFC) tags, cards and readers.
Name: ACCESS_FINE_LOCATION
Description: Access fine location sources, such as the Global Positioning System on the phone, where available. Malicious applications can use this to determine where you are and may consume additional battery power.
Name: ACTIVITY_RECOGNITION
Description: Allows an application to recognize physical activity.
Name: READ_SETTINGS
Description: Allows applications to read the global setting of the device it is running on.
Name: ACCESS_NETWORK_STATE
Description: Allows an application to view the status of all networks.
Name: READ_CALL_LOG
Description: Allows an application to read the user's call log.
Name: WRITE_EXTERNAL_STORAGE
Description: Allows an application to write to the SD card.
Name: READ_EXTERNAL_STORAGE
Description: Allows an application to read from SD Card.
Name: WRITE_CONTACTS
Description: Allows an application to modify the contact (address) data stored on your phone. Malicious applications can use this to erase or modify your contact data.
Name: WRITE_SYNC_SETTINGS
Description: Allows an application to modify the sync settings, such as whether sync is enabled for Contacts.
Name: ACCESS_MEDIA_LOCATION
Description: Allows an application to access any geographic locations persisted in the user's shared collection.
Name: AUTHENTICATE_ACCOUNTS
Description: Allows an application to use the account authenticator capabilities of the Account Manager, including creating accounts as well as obtaining and setting their passwords.
Name: READ_PHONE_STATE
Description: Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to and so on.
Name: READ_PHONE_NUMBERS
Description: Allows read access to the device's phone number(s).
Name: SYSTEM_ALERT_WINDOW
Description: Allows an application to show system-alert windows. Malicious applications can take over the entire screen of the phone.
Name: CAMERA
Description: Allows application to take pictures and videos with the camera. This allows the application to collect images that the camera is seeing at any time.
Name: WAKE_LOCK
Description: Allows an application to prevent the phone from going to sleep.
Name: CHANGE_WIFI_STATE
Description: Allows an application to connect to and disconnect from Wi-Fi access points and to make changes to configured Wi-Fi networks.
Name: RECORD_AUDIO
Description: Allows application to access the audio record path.
Name: READ_CONTACTS
Description: Allows an application to read all of the contact (address) data stored on your phone. Malicious applications can use this to send your data to other people.
Name: MODIFY_AUDIO_SETTINGS
Description: Allows application to modify global audio settings, such as volume and routing.
Name: WRITE_CALENDAR
Description: Allows an application to add or change the events on your calendar, which may send emails to guests. Malicious applications can use this to erase or modify your calendar events or to send emails to guests.
To view how these results compare within industry see our analysis:
To view how these scores are created visit our transparency post where we published a description of our phone application threat scoring algorithm.